Cisco CCNP Enterprise 300-425 ENWLSD – Design Aspect of Regulations, Safety Considerations and Miscellaneous Features Part 2

6. CH02-05 Regulatory Domains

Hello and welcome to our new lesson. In this lesson, we will talk about regulatory domains. So why do we have them in the first place? We have such regulatory domains to simply group countries that have common policies and to emphasize that common policies. We put those countries into certain regulatory domains so that we will will have the same level of power levels. We will be able to arrange same channel sets for our wireless equipment. Cisco generally devised countries 14 into 14 regulatory domains. Most important ones are the ones you see here. So first of all, you see an access point that says that for example, let’s say four to 80 zero k nine blah blah something and you see something A. If you see A, that means it is for United States. US. Of A.

If you see something with C, that means it’s China that should be used in China. E is easy countries Europe I, this will be for Middle East. I don’t know why you called Middle East as I, but at seas I can understand America china Etsy, that should be a logic behind that. Korea N will be none, FCC Pnj board will be for Japan. So Japanese people have two regulatory domains for themselves as for Singapore, T for Taiwan and for X, it means it’s a universal AP. This is the X factor. You can use it universally. Okay, so you saw Dashi and you can use it in your Etsy. So where else you can use it? Canada.

They also obey FCC rules and you have at sea, but you can have different countries that are even in Middle East, for example, Algeria, Bahrain, those are in Middle East or in Algeria, in Africa, but they use Etsy E. And what else? We have, for example, Mexico. This is a nonce country, beautiful country as we have some countriespecific regulatory domains, we have country specific regulatory agencies and due to that fact, you need your WiFi devices to have certain guidelines and they need to obey certain RF regulations.

When you design your WiFi for an organization that will cover many different nations, you need to use a unique controller for each country with appropriate regulatory domains. But in certain situations you need to support multiple countries on the same domain. Although the controller will support different access points in different countries, the controller will require all radios in a single access point to be configured for the same regulatory domain.

So you shouldn’t use 811 B for Mexico and you shouldn’t use 811 A for Belgium. You should allow all radios and a single access point to use the same regulatory domain and controller will only if you don’t do that, control will only allow one of the radios for the access point to turn on. So you need to make sure that the same country code is configured for both of the access point radios. When you use multiple counterfeiter, all of the controllers will join the same RF group, and you need to configure that RF group with the same set of countries. So in this video, we talked about different regulatory domains and why we need them and how they act if you configure more than one country on the same controller thank.

7. CH02-06 Deployment Location Safety Considerations Part 1

Hello and welcome to our new lesson. In this lesson we will talk about some deployment, location, safety considerations and this is part one. First of all, we will understand some production environment. So if you are working in an environment or if you are deploying access points in a factory or something like this still kind of factory and manufacturing plant, you need to have a site specific safety training. Because each site has its own requirements, has its own safety cautions. You need to be aware of all of them. And you need to have some safety glasses. You need to weigh over some protection that could be protecting your hearing, that could protect your foot and had some special gloves. You need to COVID your body with enough protective clothing.

Even some plants, manufacturing plants need you to attend safety briefing or safety training that will have some sitespecific information and with the help of those information you will understand how to and which equipment to use. For example, you need some safety glasses because you will be going around with some very shining elements such as melting steel. You need to have protection for your hearing. You might be around high levels of noise, you will need head protection and hand protection because there can be injuries that are related to it touching some high temperature material and there might be danger of falling around due to this manufacturing plant. And you will need to wear some food protection because there can be heavy objects that you need to carry or that you need to be aware of and they can just drop down to your foot.

So you don’t want your foot to be damaged. You don’t want to wear like this guy, what this guy wears. You will have some shield metal cereals here and there and then if something drops onto your foot, it will not have any damage to your foot. So you will need some protection. Foot hard headheads, you will need some protection for even coating because it could be against some physical or biological hazards and you need to not have exposure to such hazards and you will be protected as much as possible. Next, we need to talk about some storage facilities.

And when you talk about storage facilities, you will have some warehousing. Of course you will have some forklifts and forklifts can definitely cause harm to people. Just go to YouTube and just search for forklift accidents and you will see some pretty graphic accidents and you don’t want that. So you need to be look out for things that can drop on to you because you will have huge warehouses and even at the top they will need some storage at the top shelves. If you need access to the ceiling, you will need some form of leathers and you will even need to be aware of leather safety. And you will need to make sure that your ladder is not in the pad of any forklifts. So somebody will not have great visibility with a forklift, okay? They cannot see your ladder just standing there and you on top. And if you are, for example, on a ladder, and if you want to deploy an access point in such places, you need to make sure that the aisle of the warehouse is closed.

Nobody will enter there, so nobody will tangle your ladder and get it dropped down. And this is also true for surveying because you will have your attention onto the survey software and you will not paying too much attention to objects going around you. You might need to use the warehouse in old hours. You can have a chaperone to go around the warehouse or storage facility, but you need to have such safety measurements so that you will not be regretting that too much. And when we talk about some letter safety, even there are some specific standards in the United States, we call them as OSHA standards. And this is for portable letters.

There are some requirements for loads, angle, rungs, slipping, and some other requirements. And you will need certain distances that runs, needs to be spaced. And you will need to have some metal spreader or locking device to hold your ladder in open position. And you also need to talk about we also need to talk about aerial lifts. So you cannot just put a ladder up to here, okay? To access here, you will need some, you will need to use some lifts. And to use those lifts, you will need some properly trained workers and they need to be able to get you up to the ceiling with the help of the lift. But of course, thinking about your safety when you’re operating those devices, you shouldn’t just you shouldn’t just operate those devices as a wise professional, you should just let the guy who knows what he’s doing, you shouldn’t let anybody will say that okay, I can take you to the lift. Don’t just believe that guy. If he drops you down that lift, I don’t think he will be around too much.

So you should just let them, let the proper personnel to use the lift, certified personnel. And you need to get some sort of clearance around the lift so that nobody will come around. And you won’t have any danger, you won’t create any danger to others because you might be in danger on a lift. But people on the ground will have much higher danger if you just drop down an access point. And it will be a one shot, one kill situation. So don’t do it, please.

You should have some sort of clearance so that people will not be around you if you drop something like an access point, like a screwdriver. And you should also check the weight of the allowed weight of the lift, because I’m a guy with almost £300, and if it is not going to carry £300, I shouldn’t be on that lift. Okay? I should find a colleague who is much light, who is much lighter. And on the first part, we talked about some manufacturing plants and production environments. We talked about warehouses, storage facilities and some safety safety measurements that we need to take while using aerial lips and some letters that we will use to deploy access points.

8. CH02-07 Deployment Location Safety Considerations Part 2

Come to our new lesson. In this lesson, we will continue our discussion for the deployment location safety Considerations this is part two. First of all, we need to talk about some outdoor RF concerns. In this one, we need to think RF as some sort of hazardous environment because even in FCC rules, it may require some attention if you get too much RF or radio frequency exposure. Although the power and how the operation goes through in 8211 standard signals are not too much, the combination of high output power on the access point combined with a high gain and planner might be dangerous. Don’t just think unlicensed bands as safe to operate, safe to use without any precautions. It will not be that safe. And you need to also be aware that some antennas that will manipulate the output or transmit power of your 800 and 211 device might just increase the output or the power too much and that will be hazardous to human health. Even in United States OSHA rules, radio frequency is considered as a hazardous environment.

So you need to restrict access to some outdoor antennas and you need to also get those antennas under control to make sure that they are under certain limitations for the maximum output power. Another thing that we need to think about is chemical hazardous areas. Refineries are one of those. In those industrial areas, you need to again, just like the production environments, you need to wear some protection. You need to use eye protection, hardheads steel toe shoes, and you will also need some protection against the smells or against the particles, chemical particles in the air. There can be some particles in the air. You should also be protecting yourself or your employees who will do the site server, who will do the deployment against those hazardous particles.

Even for certain areas, there are some mandatory trainings and you need to pass them with certain percentages. Another thing that will create an issue for the deployment is rail yards. Rail yards will create a dangerous situation for you as the orientation and safety awareness will be an issue for the newcomers. You will also need to have certain trainings. You will need to have certain badges to access places, because they won’t let you just go around the rail yards. Trying to understand how the deployment will be doing some site surveys, because as you can see here, there will be some electricity on those lines. There will be a danger of getting hit by a train because you will be more focused on your job and people won’t let you go around the rail tracks.

And even in many countries you are required to take a safety orientation class to work on those railroads. And for United States, you should even need to complete that annually. So it is not something that you can just go around, check it out and do the design and just do the site surveying. You have to get some proper training. You have to be certified to do such operation. So it will be a whole different process for you to be on those railway yards. Also, we need to talk about some RF transmission sites. What are those? You will see that there are some towers for those RF signals, there are some huge addition tennis for even some wire signaling between two different buildings. And you will be going around restricted areas on the rooftops.

So all those things will be first you will have some environmental issues because you can just fall down from the rooftop and such things like that. You will need to be aware of the area physically. Also you will need to be protecting yourself, not getting too close to high output places, because even though, just like we talked, those unlicensed bands will be operating under certain limits. Again, it is not just safe to be around them too much, because 56 DBM is a very high throughput out and you don’t want to be around that too much. And you should also be careful about how to manipulate the transmission power because you don’t want to put an outdoor antenna on those wireless transmission units, on those wireless devices. So that you will not be beyond the limits of the regulations of your country. Because each country has its own limits. Each country has its own safety agencies.

In Australia. Safe work, Australia. In France, National Research and Safety Institute deals with that. In Korea occupational Safety and Health Agency. Kosher will be dealing with that. In, let’s say, Ireland, Health and Safety Authority will be dealing with that. In the United Kingdom, Health and Safety Executive will be dealing with the risks and health and safety issues from the work activities. So you will be responsible against those institutes and you will need to understand the dangers better and you will be able to act against them and get the necessary precautions in time in the correct way. So, in those two videos we talked about some safety considerations related with the deployment location.

9. CH02-08 Customer Aesthetic Limitations on the Installation

Hello and welcome to our new lesson. In this lesson, we will briefly discuss about the customer aesthetic limitations on the installation. As you know, and if you already happen to be a customer, you want to install the access points in such a way that it will not look bad for your environment. It should almost look like something that should already be there for the first place, like this one. Or you could just use some tools or some enclosement devices to get them seen, like everyday devices there. There is a very good firm called Oberon, and they have pretty neat enclosure spaces, pretty neat aesthetic installation boxes for access points. They even have different access, different devices, different enclosures for different vendors. I don’t have any affiliates with them, trust me, but I saw how they apply products, how they manufacture products, and I just really love them. So you should check out their site also. And access points with internal antennas such as these ones or this one, have antennas that are not removable, so they are inside the access point.

So you shouldn’t just block any of those antennas, any of those access points, and you should let them be visible as much as visible as much as you can do. Why? Because you don’t want to decrease their signal strength and you don’t want to decrease their coverage. And how do you understand an access point if it’s an internal or external antenna? If it has I in the model number, it means internal. If it has E in the model number, it has an external antenna. External antennas are more rugged and they are more likely to be used in industrial spaces such as factories, storage facilities, even hospitals, and some locations that need extended operating temperatures and external antennas. And you use them in demanding environments.

So in places like indoors classrooms, even in some hospitals, that you can use indoor access points, internal antenna access points, that means you will need to put them in such spaces so that they will not be visible or they will not be prone to theft. In schools, children are very curious about new devices, things that they don’t see at home. So you don’t want them to see the access points and wonder about them and try to poke them with a stick or try to get them down, so you might cover them with some enclosurement, enclosure, boxes. This is a box. The access point is not this is not the access point. This is the covered space around it. So you have a lock here, and you will just get it in like this one. When it opens up, it seems like this one.

So you will be able to use cabling here and there. And when you put something like this on the front, they will not be able to touch them, they will not be able to reach them. And you should just close this Led disable. This Led so they will not be able to get distractions from it. And you will need to preserve the space as much as possible. It needs to be just like before, just like before the deployment. And those devices should look like they were there at the first place.

So concerning aesthetic limitations will be costly. It will need some time to deploy such boxes. And you will need some more design issues because just putting something on here or getting it strapped to metal like these ones would be very easy. But they would be prone to falling down. And it can again, create some accidents. So you need to put them out of the point of view of any people going around there. And it should look like the debut for the installation. So in this video, we talked about some different antenna, different exploit models concerning antennas. And we went over some aesthetic considerations.

10. CH02-09 Assess The Existing Wired Network For Wireless Infrastructure

And welcome to our new lesson. In this lesson, we will talk about how to assess the existing Wired for wireless infrastructure. So, as you know, wireless infrastructure structure cannot be working on its own. It will need the wired infrastructure down low and it will need switches for the poe and connections. And you need to assess the wired infrastructure and switch positions. The length from access point to switches needs to be considered. You also need to understand the pure capability of each switch, whether the Pure budget is available, and understand if there are any ports available on the switches. And if you have many different floors. Are there enough switches in the floors? Or do you need to use up or down floors for the access point on that floor? You need to talk about all of them, you need to consider them, and you also need to understand the bandwidth needs, whether you have any wider connection between branches or is it coming through the Internet.

Do you have enough bandwidth for all those access points? Because access points might provide 54 to 600 megabits per second for lower technology, even lower technologies, and 600 megabits per second with 48 devices might need serious bandwidth. And if you connected this switch uplink to one gigabit, this will not be enough. So you need to consider this bandwidth needs for the uplinks. And you also need to think about switching throughput because some switches don’t have enough backplane speed for each port. You need to think about the server access. Do you have access to all the servers that you need, such as triple servers, Ice, LDAP, NTP? Do you have all of them?

Do you have connection to the SCP? Do you need certain requirements to be able to connect them through the layer tree? Or do you need any password or username combinations for you to be able to operate and deploy the wireless infrastructure? Of course you will need them, but how can you get them? Who will provide such username and password privileges? You also need to think about the physical requirements.

Do you have enough cabling that goes to access points? Do you need to provide that cabling in your deployment? Or do you have any existing cabling that goes through the access points with a different vendor? Are they the latest ones? Do you need to put the cabling again or can you use the existing infrastructure?

You all need to think about this and you need to think about the cooling systems for your switches, because you will need lots of pure power from those switches and they will need more cooling. Will it be sufficient if the switches operate under full capacity? Were they planned beforehand? Even though that wasn’t your problem to begin with? It will be your problem, so you need to even think about that. Do you have enough power from the switches? Does it support poe, Pure Plus or UPoE? You all need to think about that. So what is UPE?

It’s a new standard. It is universal power over Ethernet and it extends the Pure Plus standard so that it will get up to 60 watts. So Pure Plus goes up to 30 watts and PE goes to 15. 4 watts. So you need to consider all this. Does your access point or any model need higher PE levels? Because some of them have modules and you will need to get more power to those access points if you want to use the full capacity of MIMO.

Because if you have a four x four MIMO access point and if you just use two x two on that, it will draw less power. But if you want to use four x four and use the module on that, then it will need more power than the time that it uses just two by two. You need to consider all those things. So just thinking about the wireless infrastructure would not be enough for you. We’re going to think about switches, the lengths, cable lengths, cable types, peele capabilities, some physical requirements dealing with cooling, and you also need to think about access. The physical access is also needed in certain situations and also the bandwidth needs and requirements.